ACI Written Exam with Complete Solutions 2023/2024

ACI Written Exam with Complete Solutions 2023/2024 The sensor of the temperature measureing device shall be submerged a minimum of ____ in - Correct Answer 3 (75mm) The temperature measureing device shall have a capacity of measuring temperature of freshly mixed conrcrete to +-_____ degrees F throught a range of _____ - Correct Answer 1(.5 degrees C), 30-120 (0-50 degrees C) The temperature measuring device shall be calibrated____, or whenever there is a question of _____ - Correct Answer annually, accuracy The temp of concrete may be measured in a wheelbarrow - Correct Answer true the temp of concrete may be measured in a wall form - Correct Answer true A composite sample of concrete is required even if the only purpose for obtaining the sample is to determine temp. - Correct Answer false What must be done to the sample container prior to sampling the concrete - Correct Answer dampen (with water) what must be done to the concrete surrounding the temp measuring device after the device has submerged - Correct Answer Press concrete around measuring device How long must the temp device remain in the concrete - Correct Answer at least 2 minutes (but no more than 5) After temp of concrete is read, what then is required - Correct Answer reporting of temp the temp of concrete to be measured to the nearest ____degree F - Correct Answer 1 (.5 degree C) According to the ASTM C1064 what is one reason to take the temp of concrete - Correct Answer verify conformance to a specified requirement for temp A max temp of concrete is specified in ASTM C1064 - Correct Answer False The sample of concrete used for temp determination must be rodded 25 times - Correct Answer False Sampling by this method is required when tests are to be made to determine ____ with specification requirements - Correct Answer compliance